Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory

建模方法	运动方程系数矩阵维度	连接处及其附近集中质量间的结构变形假设
注：$ N $为DMB水弹性分析方法中的离散子模块（或集中质量）数目，h 为多模块弹性浮体的连接处数目。
虚拟刚度法	$ {\text{6}}N \times 6N $	刚性假设
限制矩阵法	$ \left( {6N + 5h} \right) \times \left( {6N + 5h} \right) $	刚性假设
子结构法	$ {\text{6}}N \times 6N $	弹性假设
全节点法	$ \left( {6N + 12h} \right) \times \left( {6N + 12h} \right) $	弹性假设

Table 2. Parameters of waves and two-modules-hinged VLFS ^[13]

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Table 2. Parameters of waves and two-modules-hinged VLFS ^[13]

波浪和VLFS参数	取值
VLFS的长度L/ m	300
VLFS的宽度B/ m	60
VLFS的高度H/ m	2
VLFS的吃水D/ m	0.5
VLFS垂向弯曲刚度EI/ (N·m²)	4.77×10¹¹
水深d/ m	58.5
VLFS的质量/kg	9.225×10⁶
铰接处位置距VLFS左端的距离/ m	150
波浪幅值A/ m	1
波浪入射角φ/（ °）	0

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Yongqiang CHEN, Yu ZHANG, Xiantao ZHANG. Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory[J]. Chinese Journal of Ship Research, 2022, 17(1): 117

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